2019-01-21 21:53:36 +00:00
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2018 Google
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*/
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#include <common.h>
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2020-05-10 17:40:02 +00:00
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#include <init.h>
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2019-01-21 21:53:36 +00:00
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2019-07-22 11:59:41 +00:00
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#ifdef CONFIG_SPL_BUILD
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2019-01-21 21:53:36 +00:00
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/* provided to defeat compiler optimisation in board_init_f() */
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void gru_dummy_function(int i)
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{
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}
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2019-07-22 11:59:41 +00:00
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int board_early_init_f(void)
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{
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# ifdef CONFIG_TARGET_CHROMEBOOK_BOB
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int sum, i;
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/*
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* Add a delay and ensure that the compiler does not optimise this out.
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* This is needed since the power rails tail a while to turn on, and
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* we get garbage serial output otherwise.
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*/
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sum = 0;
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for (i = 0; i < 150000; i++)
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sum += i;
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gru_dummy_function(sum);
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#endif /* CONFIG_TARGET_CHROMEBOOK_BOB */
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return 0;
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}
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#endif
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